This is the chart of person who has multiple marriages and still have no child and suffering from separation with marriage.

combination: 1) 1st if u will see there is a drashti samband between moon and saturn called punarbhu yog(marriage break combination)

                    2) puchmesh ka saptmesh s samband bhi 2 vivah yog(5th and 7th lord connection in any way).

                    3) 12th lord in 7th house and with retro mercury separation.

For child birth we check 5th house from lagan ,5th house from moon,5th house karak grah jupiter.

child birth problem : 1) jupiter in 5th house in the ketus nakshtra.

                              2) 5th house from moon is ketu there

                              3) 5th house from jupiter espected by retro saturn and rashi lord surya in naksthra of rahu.